<template>
  <div>
    <!-- 面包屑 -->
    <el-breadcrumb separator="/">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片视图 -->
    <el-card>
      <el-row :gutter="20">
        <el-col :span="2">
          <!-- 刷新按钮 -->
          <el-button
            icon="el-icon-refresh"
            @click="refreshUserList"
            type="primary"
            plain
            >刷新</el-button
          >
        </el-col>
        <el-col :span="8">
          <!-- 搜索与添加 -->
          <el-input
            placeholder="请输入内容"
            v-model="queryInfo.query"
            clearable
            @clear="getUserList"
          >
            <el-button slot="append" icon="el-icon-search" @click="getUserList"
              >搜索</el-button
            >
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button
            type="primary"
            @click="addDialogVisible = true"
            icon="el-icon-plus"
            >添加用户</el-button
          >
        </el-col>
      </el-row>
      <!-- 用户列表区域 -->
      <el-table :data="userList" border>
        <el-table-column type="index"></el-table-column>
        <el-table-column label="姓名" prop="username"></el-table-column>
        <el-table-column label="邮箱" prop="email"></el-table-column>
        <el-table-column label="电话" prop="mobile"></el-table-column>
        <el-table-column label="角色" prop="role_name"></el-table-column>
        <el-table-column label="状态">
          <template slot-scope="scope">
            <el-switch
              v-model="scope.row.mg_state"
              @change="userStateChange(scope.row)"
            ></el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作" width="140px">
          <template slot-scope="scope">
            <el-button
              type="primary"
              icon="el-icon-edit"
              circle
              size="mini"
              @click="showEditForm(scope.row)"
            ></el-button>
            <el-button
              type="danger"
              icon="el-icon-delete"
              circle
              size="mini"
              @click="showDeleteForm(scope.row)"
            ></el-button>
            <el-tooltip
              effect="dark"
              content="分配角色"
              placement="top"
              :enterable="false"
            >
              <el-button
                type="warning"
                icon="el-icon-setting"
                circle
                size="mini"
                @click="showAssignRolesDialog(scope.row)"
              ></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>
      <!-- 分页功能 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[1, 2, 5, 10]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      >
      </el-pagination>
    </el-card>
    <!-- 添加用户对话框 -->
    <el-dialog
      title="添加用户"
      :visible.sync="addDialogVisible"
      width="40%"
      @close="addDialogClosed"
    >
      <!-- 内容主体区域 -->
      <el-form
        :model="addForm"
        :rules="addRules"
        ref="addFormRef"
        label-width="70px"
      >
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input type="password" v-model="addForm.password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <!-- 底部按钮区域 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="addDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addUser">添 加</el-button>
      </span>
    </el-dialog>
    <!-- 更新用户数据 -->
    <el-dialog
      title="修改用户信息"
      :visible.sync="editDialogVisible"
      width="40%"
      @close="editDialogClosed"
    >
      <!-- 表单区域 -->
      <!-- 内容主体区域 -->
      <el-form
        :model="editForm"
        :rules="editRules"
        ref="editFormRef"
        label-width="70px"
      >
        <el-form-item label="用户名">
          <el-input v-model="editForm.username" disabled></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <!-- 底部区域 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button @click="updataUserInfo" type="primary">确 定</el-button>
      </span>
    </el-dialog>
    <el-dialog :visible.sync="deleteDialogVisible" width="30%">
      <span slot="title">
        <i class="el-icon-delete"></i>
        删除用户
      </span>
      <span>
        是否删除用户
        {{ toDeleteUser.username }}？
      </span>
      <span slot="footer" class="dialog-footer">
        <el-button @click="deleteDialogVisible = false">取 消</el-button>
        <el-button type="danger" @click="deleteUser(toDeleteUser.id)"
          >确 定</el-button
        >
      </span>
    </el-dialog>
    <el-dialog
      :visible.sync="assignRolesDialogVisible"
      width="40%"
      title="分配角色"
    >
      <div>
        <p>当前用户：{{ userInfo.username }}</p>
        <p>当前角色：{{ userInfo.role_name }}</p>
        <el-select v-model="selectRoleId" placeholder="请选择">
          <el-option
            v-for="item in rolesList"
            :key="item.id"
            :label="item.roleName"
            :value="item.id"
          >
          </el-option>
        </el-select>
      </div>
      <span slot="footer" class="dialog-footer">
        <el-button @click="assignRolesDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>
<script>
export default {
  data () {
    // 验证邮箱的规则
    var checkEmail = (rule, value, callback) => {
      if (value !== '') {
        var reg =
          /^[A-Za-z0-9\u4e00-\u9fa5]+@[a-zA-Z0-9_-]+(\.[a-zA-Z0-9_-]+)+$/
        if (!reg.test(value)) {
          callback(new Error('请输入合法的邮箱！'))
        }
      }
      callback()
    }
    // 校验手机号的规则
    var checkMobile = (rule, value, callback) => {
      if (value !== '') {
        var reg = /^1[3456789]\d{9}$/
        if (!reg.test(value)) {
          callback(new Error('请输入合法的手机号！'))
        }
      }
      callback()
    }
    return {
      // get参数
      queryInfo: {
        // 搜索的内容
        query: '',
        // 当前的页数
        pagenum: 1,
        // 当前每页显示多少条数据
        pagesize: 10,
      },
      userList: [],
      total: 0,
      // 添加对话框是否显示
      addDialogVisible: false,
      // 修改对话框是否显示
      editDialogVisible: false,
      // 添加表单项
      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: '',
      },
      // 添加表单验证规则
      addRules: {
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' },
          {
            min: 3,
            max: 10,
            message: '长度在 3 到 10 个字符',
            trigger: 'blur',
          },
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          {
            min: 6,
            max: 15,
            message: '长度在 6 到 15 个字符',
            trigger: 'blur',
          },
        ],
        email: [
          // 验证邮箱
          { validator: checkEmail, trigger: 'blur' },
        ],
        mobile: [
          // 验证手机号
          { validator: checkMobile, trigger: 'blur' },
        ],
      },
      // 修改信息表单
      editForm: {
        id: '',
        username: '',
        email: '',
        mobile: '',
      },
      // 修改信息表单验证规则
      editRules: {
        email: [
          // 验证邮箱
          { validator: checkEmail, trigger: 'blur' },
        ],
        mobile: [
          // 验证手机号
          { validator: checkMobile, trigger: 'blur' },
        ],
      },
      // 是否显示删除对话框
      deleteDialogVisible: false,
      // 要删除的用户名
      toDeleteUser: {},
      assignRolesDialogVisible: false,
      // 需要被分配角色的用户信息
      userInfo: {},
      // 角色列表
      rolesList: [],
      // 选中的角色
      selectRoleId: '',
    }
  },
  created () {
    this.getUserList()
  },
  methods: {
    async getUserList () {
      const { data: res } = await this.$http.get('/users', {
        params: this.queryInfo,
      })
      if (res.meta.status !== 200) {
        return this.$message().error('获取用户列表失败！')
      }
      this.userList = res.data.users
      this.total = res.data.total
    },
    // 监听pagesize改变
    handleSizeChange (newSize) {
      this.queryInfo.pagesize = newSize
      this.getUserList()
    },
    // 页码改变
    handleCurrentChange (newPage) {
      this.queryInfo.pagenum = newPage
      this.getUserList()
    },
    // 监听开关状态的改变
    async userStateChange (userInfo) {
      const { data: res } = await this.$http.put(
        `users/${userInfo.id}/state/${userInfo.mg_state}`
      )
      if (res.meta.status !== 200) {
        userInfo.mg_state = !userInfo.mg_state
        return this.$message.error('更新用户状态失败！')
      }
      this.$message.success('更新用户状态成功！')
    },
    // dialog关闭事件
    addDialogClosed () {
      this.$refs.addFormRef.resetFields()
    },
    // 点击按钮，添加新用户
    addUser () {
      this.$refs.addFormRef.validate(async (valid) => {
        console.log(valid)
        if (valid) {
          const { data: res } = await this.$http.post('users', this.addForm)
          if (res.meta.status !== 201) {
            this.$message.error('添加用户失败')
          } else {
            this.addDialogVisible = false
            this.$message.success('添加用户成功')
            this.getUserList()
          }
        } else {
          this.$message.error('请填入有效信息')
        }
      })
    },
    // 刷新页面  清空搜索框
    refreshUserList () {
      this.queryInfo.query = ''
      this.getUserList()
    },
    // 显示修改信息表单
    async showEditForm (userInfo) {
      const { data: res } = await this.$http.get('users/' + userInfo.id)
      console.log(res)
      if (res.meta.status !== 200) {
        return this.$message.error('查询用户信息失败')
      }
      this.editForm.id = userInfo.id
      this.editForm.username = res.data.username
      this.editForm.email = res.data.email
      this.editForm.mobile = res.data.mobile
      this.editDialogVisible = true
    },
    // 更新用户信息
    updataUserInfo () {
      this.$refs.editFormRef.validate(async (valid) => {
        console.log(valid)
        if (valid) {
          const { data: res } = await this.$http.put(
            `users/${this.editForm.id}`,
            {
              id: this.editForm.id,
              email: this.editForm.email,
              mobile: this.editForm.mobile,
            }
          )
          if (res.meta.status !== 200) {
            this.$message.error('修改用户失败')
          } else {
            this.editDialogVisible = false
            this.getUserList()
            this.$message.success('修改用户成功')
          }
        } else {
          this.$message.error('请填入有效信息')
        }
      })
    },
    // 更新表单关闭
    editDialogClosed () {
      this.$refs.editFormRef.resetFields()
    },
    // 显示确认删除对话框
    showDeleteForm (userInfo) {
      this.deleteDialogVisible = true
      this.toDeleteUser = userInfo
    },
    async deleteUser (id) {
      const { data: res } = await this.$http.delete('users/' + id)
      if (res.meta.status !== 200) {
        return this.$message.error('删除失败！')
      }
      this.$message.success('删除成功！')
      this.deleteDialogVisible = false
      this.getUserList()
    },
    async showAssignRolesDialog (userInfo) {
      this.userInfo = userInfo
      this.selectRoleId = ''
      // 获取所有角色列表
      const { data: res } = await this.$http.get('roles')
      if (res.meta.status !== 200) {
        return this.$message.error('获取角色列表失败')
      }
      this.rolesList = res.data
      this.assignRolesDialogVisible = true
    },
    async saveRoleInfo () {
      if (!this.selectRoleId) {
        return this.$message.error('请选择角色')
      }
      const { data: res } = await this.$http.put(`users/${this.userInfo.id}/role`, { rid: this.selectRoleId })
      console.log(res)
      if (res.meta.status !== 200) {
        return this.$message.error('更新角色失败')
      }
      this.$message.success('更新角色成功')
      this.getUserList()
      this.assignRolesDialogVisible = false
    },
  },
}
</script>
<style lang="less" scoped>
</style>